Thread: Duramax vs GM
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Old 12-13-2018, 10:54 AM
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One way to describe it...

Lookout pass on I-90 is near here. You can maintain 70-mph on the Montana side all of the way to the top. An empty stock Duramax powered truck can climb this mountain pass in OD without a downshift, and not lose any speed. A gas powered equivalent will need a downshift or two and lots more RPM (and noise) to maintain speed.
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